Why is only about 10 percent of the energy passed on at each trophic level?
Answer and explanation
Correct answer: C. Much of the energy is lost as heat, in waste and in uneaten parts
- Step 1: Energy flows through food chains. Step 2. Organisms use energy for respiration, movement and heat, and some parts are not eaten. Answer: Much of the energy is lost as heat, in waste and in uneaten parts. Why not the others: Energy is not gained from the sun at higher levels.
Practise more Ecology.
Free questions with an explanation for every one, and full timed UK GCSE mock tests.
More Ecology questions
- What is a producer in a food chain?
- In the food chain grass, rabbit, fox, what is the rabbit?
- What is the effect on a population of rabbits if the number of foxes falls sharply?
- Which gas is produced by the decay of dead plants in conditions with no oxygen?
- Which process returns carbon dioxide to the atmosphere?
- Which is the main cause of an increase in the greenhouse effect?